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because it is a worldwide system....
Explanation:
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I'm sorry I don't have a answer but I like your pfp
Answer:
B) The cosmic background radiation is expected to contain spectral lines of hydrogen and helium, and it does.
Explanation:
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Explanation:distance-time =speed
a,V =s/t
V=2m/2s
V=1m/s
b,v=s/t
V=80m/40s
V= 2m/s
The average speed is 2m/s
I suppose that you wanted write "uncharged". The particles without electrical charge present in the nucleus are called neutrons.